I don't want to take away from how awful this was, but in 2010 there were 10,228 people killed in alcohol-impaired driving crashes[1] - that's 28 each day.
So no, I don't think we'll be hearing about this case for the next year - it's actually depressingly typical. It just happens to have occurred at a large event that Hacker News has a strong connection to.
[1] http://www.cdc.gov/motorvehiclesafety/impaired_driving/impai...